Sterile super-lubricity antiseep safety catheter structure

Abstract

The invention relates to a sterile super-lubricity antiseep safety catheter structure and belongs to the field of medical equipment. The sterile super-lubricity antiseep safety catheter structure comprises a catheter body, an air bag and an inflating tube, wherein one end of the catheter body forms a catheter guiding head part, the other end of the catheter body forms a catheter connecting sleeve, and an air bag inflating hole is formed in a cavity wall of the catheter body. Two ends of the air bag and an outer wall of the catheter body form an integrated body, and the middle of the air bag and the outer wall of the catheter body form an inflating cavity. The inflating tube is formed on one side of the catheter connecting sleeve. The sterile super-lubricity antiseep safety catheter structure is characterized in that the diameter of a catheter connecting sleeve cavity is gradually expanded in the direction far away from the catheter body, a seal ring is formed on a cavity wall of the catheter connecting sleeve cavity, a guiding head is fixed at the tail end of the catheter guiding head part, an inflation valve matching sleeve is arranged at the tail end of the inflating tube in an expanded mode, and an inflation valve is arranged on the inflation valve matching sleeve in a matched mode and comprises a valve body and a valve. The sterile super-lubricity antiseep safety catheter structure guarantees that the expanded air bag is in good contact with an inner wall of the bladder, pain of patients is reduced, the intubation speed is improved, the sealing effect is good, convenience is provided for X-ray radiography, the antibacterial and smoothness effect is guaranteed, and the sterile super-lubricity antiseep safety catheter structure is hygienic and safe.

Description

Technical field [0001] The invention belongs to the technical field of medical equipment, and specifically relates to a sterile ultra-slip and leak-proof safe urinary catheter structure. Background technique [0002] Technical information about urinary catheters can be found in published Chinese patent documents, such as publication number CN101057996A (raparesol coated urinary catheter), CN101143239A (drug controlled release catheter) and CN103301551A (hydrophilic urinary catheter) Tube lubrication components). These patent application solutions are not limited to the examples because the end inserted into the bladder of the patient lacks the function of positioning with the inner wall of the bladder, so there is a risk of prolapse of the bladder and leakage of urine. [0003] Chinese Patent Application Publication No. CN101108147A (disposable disease-free medical catheter structure), authorization announcement number CN101292925B (anti-leakage catheter), publication number CN10...

AI Technical Summary

Problems solved by technology

The urinary catheter involved in these patent applications and patent proposals that are not limited to examples is due to the fact that one end of the catheter inserted into the patient's bladder is provided with an air bag that is inflated when inflated and positioned with the inner cavity wall of the bladder under the use state. During the catheterization process, the bladder is removed and the leakage is prevented, but there are the following disadvantages: one, neither directly nor indirectly discloses the inflation valve that is arranged at the end of the inflation tube that is used to inflate the air bag to inflate the air bag The specific structure (CN101292925B is called "inflating nozzle", CN103191514A is called "sealing part", CN102824682A is called "balloon inflation valve"), however, in the actual clinical use process, the reasonableness of the inflation valve structure not only affects the The inflation effect of the balloon, and determines whether the end of the catheter inserted into the patient's bladder can be well positioned with the inner wall of the bladder

In the prior art, a connection loop is usually extended on the outer wall of the inflation tube and corresponding to the inflation port, and an inflation port plug is formed at the end of the connection loop. The urinary catheter is folded to prevent the air in the air bag from escaping through the inflation port of the inflation tube, and then the syringe used for inflation is pulled out, and then the inflation port plug is inserted into the inflation port, and finally the folded state of the opposite air tube is released, no doubt This mode of operation is very cumbersome, especially the inflation port plug is easily dislodged from the inflation port of the inflation tube by the gas pressure in the inflation tube, making the air bag useless; second, because the catheter is usually made of white transparent medical PVC (medical non-toxic Grade polyvinyl chloride), silicone rubber or latex, so it is difficult or even impossible to grasp the depth of insertion into the urethra due to the lack of reference objects. If the length of insertion into the bladder through the urethra is too long, folding in the bladder will occur The situation will affect the catheterization. On the contrary, if the insertion is too shallow or even does not reach the level of the bladder, it will also not be able to play its due role in catheterization.

Especially when carrying out X-ray angiography to patient, then can't observe the position of catheter on X-ray instrument, more can't judge the insertion degree of catheter; The head (also called the guide head of the catheter) is integrally formed with the catheter when making the catheter, and because the catheter is very soft, the guide of the head of the catheter is relatively poor during intubation. Poor, resulting in prolonged intubation operation time, not only increases the pain of patients, but also affects the efficiency of doctors

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